Microsoft has created some handy Flash-based walk-throughs for HTTP compression in general, IIS 6.0 native compression and also how to use ZipEnable (pretty much covers everything in ZE except
browser compatibility...).
These modules are also a great way to get non-technical folks familiar with HTTP compression concepts and how to make it work on Windows Server 2003.
Access the free training modules at
http://www.microsoft.com/windowsserver2003/tryiis/training/compression.mspx.
Happy Thanksgiving, folks!